Switch



M. B. STAZAK Sept. 29, 1925.

SWITCH 2 Sheets-Sheet 1 Filed Jan. 14, 1921 o oooooloo'oocl) MZEE-Z'27mm-l Sept. 29, 1925.

M. B. STAZAK swITcH led Jan. 14, 1921 Patented Sept. Z9, 1925.

UNITED STATES PATENT OFFICE.

MICHAEL B. STAZAK, 01E CHICAGO, ILLINOIS, ASSIGNOR I'O KELLOGG-SWITCHBOARD AND SUPPLY COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OFILLINOIS.

SWITCH.

Application filed January 14, 1921.

Y 1o all 107mm it lmay concern Be it known that I, lulrcnani. B. Suzan,a citizen ot the United States of America, and residing in Chicago, inthe county of Cook and State ot Illinois, have invented certain new anduseful Improvements in Switches, of which the following is adescription.

My invention has to do with a switch ot the type operated by a solenoidmagnet such as is used in connection with a group ot contacts forelectrically operated organs, and which contacts are closed simultaneousAssociated with the solenoid magnet is a relay provided with a latchingarmature, used in connection with the said solenoid magnet tor thepurpose ot releasing said contacts when they have been closed by themagnet sov that they are allowed to reopen.

For this specilication and description of my invention I have shown myinvention in connection with a group of contacts as used in electricallyoperated organs, but my invention may be used tor making' contacts inother kinds ot apparatus, as will be readily seen and understood fromreading the tollowing detail description.

For a more complete understanding of my invention reterence may be hadto the accompanying drawings, in which like reference characters in theseveral views denote like parts, and in which Fig. l is a side elevationot the switch of my invention, illustrating it in operative associationwith a movable contact carrying rack and its associated contacts;

Fig. 2 is a plan view of the switch of Fig. l;

Fig. 3 is a view similar to Fig. l, but showing the switch in itsoperated locked po`- sition and illustrating the contacts ot the pivotedrack when in engagement with their associated stationary contacts;

Fig. l is a view similar to Fig. E, but showing the latching armature inits attracted position to permit the restoration ot the solenoidlatching plate and pivoted contact carrying rack and ot the solenoid;and

Fig. 5 is an end view of the solenoid and magnet.

As thus illustrated in the several views, my invention comprises asolenoid magnet A, which is provided with a U-shaped iron l,

Serial No. 437,181.

to the legs ot which the solenoid magnet A is suitably fastened by meansoi screws 3. The said iron 1 is also provided with a guiding member 2,the use oit which will be hereinafter described. -The switch is securely fastened to a base B by the screws 3.

The solenoid magnet A comprises an energizing winding C wound upon asuitable tube between the spool heads 5 and 5', 70 and 7l being theterminals for the energizing winding C ot the solenoid magnet A. A core6 is provided for the solenoid magnet A and is ot a size to permit itsinsertion in the tube. To prevent the rotation of the core G in thetube, the end of said core G is provided with a transverse slot 9 and awasher l5 provided with a pair of pins 16 which pass 'through suitableopenings in the leg of the iron and extend therethrough and enter thesaid slot. A screw S passes through suitable orilices in the washer loand leg of the iron l and has screw-threaded engagement with a suitablytapped oritice in the thread of the core 6. The screw 8 thus holds thecore 6 in position in the tube, and the pins 1G of washer l5 inassociation with the slot 9 in the end of the core 6 to prevent the saidcore trom rotating.

rl`he plunger l2 is of a size for permitting its insertion into the tubeand is tree to move in and out ot' the latter, and a suitable opening 17in the leg ot' the iron l permits the insertion of the plunger 12 in thetube 4. The plunger end is cone-shaped, and the core 6 is provided witha conical shaped opening tor receiving the plunger l2 when the same isdrawn inwardly upon the energization of the solenoid magnet A. The otherend ot the plunger l2 is reduced and has secured thereto a. latchingplate 20 by means of a drive lit, said latching plate having an openingtor receiving the guiding member A threaded opening in the plunger isalso provided for receiving a threaded arm 2:2, its

end being provided with an eye 22. A telt washer 3() is also providedwhich is slipped over the plunger l2 and engages the face 24 of thelatching plat-e 20, preventing the 'said plate 2() from coming incontact with the leg of the heel iron, thus giving a silent ac tion whenthe plunger end is drawn into engagement with the core 6. A groove 13 isprovided on the circumferential tace ot the core t3, which groove is inalignment with Cra:

suitable openings in the leg oit 'the iron l and washer l5. Thisalignment is perinanentlysecured bymeans ot the pins 16 which engage thetransverse slot 9 as hereinhei'ore described, and pern'iits air toescape when the plungerI l2 is drawn to the core upon the en-ergizationol the solenoid magnet il, thus preventing the formation ot an aircushion between the core G and plunger l2.

The release relay E operatively associated with the solenoid magnet A,may comprise the usual core, energizing winding F and terminals 3l, thewinding F and core being suitably mounted upon a heel iron 33 by meansot' the screw 72. rlhe release relay E is securely mounted in a suitableposition upon the heel iron l ol` the solenoid magnet. An armature isprovided 'for the relay E and is pivotally supported between theextending portions ol the heel iron 33 by means ot a pivot pin 3S. rlheangular extension 3G oit the armature is provided with a latching hookintegrally formed therewith, for engaging the latching plate 2() whichis secured to the plunger l2. A spiral tension spring ilO is provi-dedwhich rests upon the upper tace ot the extension 36 and held in place byan adjustable machine screw 4t2 which extends through a suitable openingin the extension and engages a suitably tapped oriliee in the iron l. Atelt washer i3 is securely fastened to the face ot the spool head andthis prevents the armature from coming in direct contact with the ironcore 130. thus giving a silent action when the relay E is energized andthe armature is attracted. The lock nuts 170 on the screw-threaded guidemember 2 serve as adjustable means to limit the back stroke of theSolenoid plunger.

I will give only such briet description oit the mounting Contact ra lkas will be necessary Jror a clear understanding ot'its relation to thesolenoid magnet il..

An upright contact mounting rack MR is provided with a plurality otvertical contact strips 7 d suitably mounted. Another contact mountingrack MR having a plurality of spring contacts 78 (made ot phosphorbronze wire or some other similar material) is securely mounted to itand arranged in aligmnent `to make contact with strips 74, respectively.The contact rack MR is pivotally supported upon block 32. A spring' 311is provided for holding the rack 1LT. in its normal position, having itsone end secured to an arm 135 secured to the rack MR and having itsother end secured to a hook on the block 32.

A suitable grooved pulley or wheel 140 is secured to the bottom ot themounting rack MR and a wire or cord ll. tor operatively associating thepivoted rack MR with the solenoid magnet A, has one end secured to ahook H fastened to the rack MR, passes over the pulley 140 and has itsother end secured to the eye 22 ott the arm 22 of the solenoid magnet A.

The operation of the various parts described above will be more clearlyunderrstood from the `following explanation:

The energizing winding ont the solenoid magnet il is suitably connectedto a restoring circuit closing switch located on the key shelf ot theorgan, said switch being under the immediate control otl the organist.The winding of the release relay is likewise connected to a restoringcircuit closing switch located on the key shelf ot the organ andcontrolled by the organist. Then the circuit controlling switchcontrolling the winding of the solenoid magnet is operated, currentflows through the said energizing winding, causing the plunger 'l2 `tobe moved towards the core (3, and its point ll engages the cone-shapedopening l() in the core (i. The mounting rack MR being connected to theplunger l2 by the cord 41, is rocked about its pivot, and this movementlorces the spring wire contacts 78 into engagement with their respectivecontact strips 74E.

The latching plate 20, which is securely mounted to the plunger l2,rides along on the guidinemember 2 and engages the latching hook or theextension 36, pressing it upward against the tension ot the spring Ll0,until the latching plate moves beyond the latching hook when the springlO forces the extension downward and locks the latching plate in theposition as shown in Fig. 3. The plunger l2 will remain in its lockedposition and contact rack MR will remain in its rocked engaging positionuntil the organist operates the circuit closing switch which isconnected with the release relay E, permitting current to tiow throughthe energizing winding ot relay E and causing the attraction ol itsarmature The arnniture being attracted, the extension 3G is raisedupward until the latching hook clears the edge oit the latching plate20, and when in this position, as shown in Fig. il, the plrnger l2 andrack MR restore to their normal position by the action ot the tensionot' spring 3l. The return of the contact ack MR to its normal positionbreaks the contact connection between the wire spring contacts 7o andcontactstrips`71l.

The parts all being returned to their normal position, will remain sountil the solelnoid magnet is energized, which will repeat andmodifications which come within the spirit and scope of the appendedclaims.

What I claim as new and desire to secure by United States LettersPatent, is:

1. A device of the character described including a plunger, a solenoidenergizable to cause the incursion of said plunger, a member secured tothe free end of said plunger, a latching member provided with an openingsecured on the free end of said plunger, an electromagnet mounted onsaid solenoid, a locking member integrally formed with the armature ofsaid electromagnet for engaging said latching plate to lock said plungerin its incursionary position, a guiding member secured to said solenoidand adapted to engage and extend through the opening in said latchingplate for guiding said latching plate in its travel to insure engagementof said latching plate and said locking member, a plurality of movablecontact makers, stationary contacts operatively associated with saidmovable contact makers, but normally retained out of contactualengagement therewith, means for operatively connecting said movablecontact makers with said plungers via said member secured to saidplunger, said solenoid being energizable to effect the incursion of saidplunger and the engagement of said latching plate and locking member,whereby said movable contact makers are moved into engagement with saidstationary contacts and locked therein by the engagement ot said lockingmember and latching plate, said electromagnet being energizable torelease said latching plate to permit said movable contact makers andplunger to restore to normal.

2. A device of the character described including a solenoid, a plungerfor said solenoid, a latching plate secured to one end of said plunger,an electromagnet mounted upon said solenoid, a locking member integrallyformed with the armature of said electromagnet and adapted to engagesaid latching plate when said solenoid is energized, a guiding membersecured to said solenoid for engaging said latching plate to uide saidlatching plate relative to said ocking member, a multiplicity of circuitcontrolling contacts on a pivotally supported carrier, means forconnect-ing said carrier and said plunger to cause said carrier torotate upon the energization of said solenoid, and means including acoil spring for normally maintaining said locking member in its lockedposition.

3. A switching device comprising a solenoid having an associatedplunger, electrical contacts operable on movement of the plunger, aguide having an opening` fastened to the plunger, a stationary membersecured to said solenoid parallel with the plunger for extending throughsaid opening to direct the guide and the plunger in their travel,adjustable means on said member to limit the excursion of said plunger,an electromagnet adjacent said solenoid, a catch integrally formed withthe armature of said electromagnet and pivotally supported for engagingthe guide when the solenoid energizes, said electromagnet adapted .whenenergized to release said catch, and spring means for restoring saidplunger to normal.

4L. A solenoid actuated plunger having a guide member rigid with thefree plunger end and extending at an angle with the direction of saidplungers travel, said guide member being provided with an opening, astationary member secured to said solenoid and adapted to extend throughsaid opening to direct the travel of said guide member, means secured onsaid stationary member for adjusting the normal relation of the guidemember to the stationary member, a pivotally supported catch to engagesaid guide to hold the plunger in its incursionary position, and anelectromagnet to release the catch, said catch being integrally formedwith the armature of said electromagnet.

Signed by me at Chicago, in the county of Cook and State of Illinois,this l1 day of January, 1921.

MICHAEL B. STAZAK.

